CN216757894U

CN216757894U - Non-guide rail steel cylinder forming machine with tool retracting mechanism

Info

Publication number: CN216757894U
Application number: CN202123391913.5U
Authority: CN
Inventors: 肖布英
Original assignee: Deyang Beiying Mechanical And Electrical Equipment Co ltd
Current assignee: Deyang Beiying Mechanical And Electrical Equipment Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-06-17
Anticipated expiration: 2031-12-29

Abstract

The utility model provides a guide rail-free steel cylinder forming machine with a tool retracting mechanism, aims to solve the problem that the forming machine is difficult to form a short steel cylinder, and relates to the technical field of metal pipe spinning. A kind of steel cylinder make-up machine without guide rail with tool retracting organization, including mould case, mould shelf, swing driver, mould actuating device and base; the die box is rotationally connected with the base through a first rotating shaft, the swing driver is hinged with the die box, and the die box further comprises a tool retracting driving device; the first rotating shaft can eccentrically rotate, and the die box is in rotating fit with the first rotating shaft; the tool retracting driving device is in transmission connection with the first rotating shaft so as to drive the first rotating shaft to eccentrically rotate and adjust the tool retracting and advancing of the die wheel. The forming machine can be used for processing long and thin steel cylinders and short steel cylinders within a certain range, the processing range is larger, the practicability is better, the forming machine has no slide rail, and the forming machine is convenient to maintain and long in service life.

Description

Guide rail-free steel cylinder forming machine with tool retracting mechanism

Technical Field

The utility model relates to the technical field of metal pipe spinning processing, in particular to a guide rail-free steel cylinder forming machine with a tool retracting mechanism.

Background

The steel cylinder is used for storing steel cylinders of high-pressure natural gas, oxygen, coal gas, liquefied petroleum gas and the like, the closing and bottom closing processes of the steel cylinder are important processes for producing the steel cylinder, and the performance of the steel cylinder is directly related to the performance of the steel cylinder.

The application number is 200620144670.1's patent application document discloses a coaxial revolves wheeled steel bottle hot spinning necking machine, including fixing at the epaxial revolves wheel of rotation, the revolving shaft supports on the slider, the slider is installed in the slider seat through moving the pair, and the slider upper end links firmly with the piston rod of slider hydro-cylinder, the slider seat links firmly with the one end of connecting plate, the other end of connecting plate with support in the turnover template axle of axle bed articulated, and link firmly with the one end of the arm of force, the other end and the arm of force hydro-cylinder piston rod end of the arm of force are articulated, arm of force hydro-cylinder bottom is articulated with the frame.

The steel bottle can be heated to the uniform temperature before processing, and the steel bottle surface under the high temperature can form certain cinder, and the mould drops at the extrusion binding off in-process cinder to the steel bottle, can produce dust and tiny particulate matter, and dust and particulate matter of high temperature scatter on the guide rail, condense after the cooling and be difficult to drop on the guide rail, lead to the guide rail fish tail easily, influence the motion of device, make-up machine maintenance cost height, life are short. Meanwhile, the linear sliding guide rail mechanism has larger clearance and uneven abrasion. Therefore, the rigidity is also poor as the use time is prolonged, and the shaking is easily generated.

Patent application No. 201920859641.0 discloses a guiderail-free steel cylinder forming machine with a tool retracting mechanism, which comprises a die box, a die frame, a chuck and a base; the die frame is provided with a die wheel; the device also comprises a first rotating shaft, a second rotating shaft, a die servo cylinder and a swing servo cylinder; the first rotating shaft is arranged on the base, and the die box is rotatably connected with the first rotating shaft; the die frame is arranged on the die box through a second rotating shaft; one end of the swing servo cylinder is hinged with the base, and the other end of the swing servo cylinder is hinged with the die box; the die servo cylinder is arranged on the die box and drives the die frame to rotate around the axis of the second rotating shaft; the axis of the first rotating shaft is parallel to the axis of the second rotating shaft. When this make-up machine is processing short steel bottle, because steel bottle length itself is shorter, during the business turn over material, pay-off anchor clamps need pass through the mould wheel, and easy and mould wheel emergence is interfered, leads to going up unloading comparatively difficult, consequently, there is the comparatively difficult problem of processing short steel bottle in current no guide rail make-up machine.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a guide rail-free steel cylinder forming machine with a tool retracting mechanism so as to solve the problem that the forming machine is difficult to form short steel cylinders.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a kind of steel cylinder make-up machine without guide rail with tool retracting organization, including mould case, mould shelf, swing driver, mould actuating device and base; the mould box is rotationally connected with the base through a first rotating shaft, the swing driver is hinged with the mould box, the mould frame is rotationally connected with the mould box through a second rotating shaft, mould wheels are arranged on the mould frame, and the mould driving device is arranged on the mould box so as to drive the mould frame to rotate around the axis of the second rotating shaft; the device also comprises a tool retracting driving device; the first rotating shaft can eccentrically rotate, and the die box is in rotating fit with the first rotating shaft;

the tool retracting driving device is in transmission connection with the first rotating shaft so as to drive the first rotating shaft to eccentrically rotate and adjust the tool retracting and advancing of the die wheel.

Furthermore, the tool retracting driving device is a hydraulic cylinder, one end of the tool retracting driving device is hinged with the die box, the other end of the tool retracting driving device is in transmission connection with the first rotating shaft through a connecting rod, and the tool retracting driving device and the connecting rod form a crank rocker mechanism for driving the first rotating shaft to rotate.

Further, the crank and rocker mechanism is in a dead-center position when the die wheel is advanced.

Further, the first rotating shaft is an eccentric shaft.

Furthermore, the two ends of the first rotating shaft are respectively and rotatably connected with the base through eccentric bearings, so that eccentric rotation is realized.

Furthermore, the die driving device is a hydraulic cylinder and is in transmission connection with the second rotating shaft through a transmission mechanism so as to drive the die frame to rotate around the axis of the second rotating shaft.

Further, the transmission mechanism comprises a gear and a rack, the gear is fixed on the second rotating shaft, and the rack is fixed on a piston rod of the mold driving device and meshed with the gear.

Further, the swing actuator is a hydraulic cylinder.

Furthermore, one end of the connecting rod is clamped in a groove in the first rotating shaft, the die box is in rotating fit with the first rotating shaft through two connecting lugs arranged at intervals, a limiting groove for limiting the die box to move along the axial direction of the first rotating shaft is formed between the two connecting lugs, and the connecting rod is matched with the limiting groove.

The utility model has the beneficial effects that: the guide-rail-free steel cylinder forming machine with the tool retracting mechanism adjusts the position of the die box through eccentric rotation of the first rotating shaft, so that tool retracting and advancing adjustment of the die wheel is realized.

Drawings

FIG. 1 is a schematic view of the structure of a cylinder forming machine according to the present invention;

FIG. 2 is a schematic structural view of a second swing actuator of the present invention employing a rack and pinion mechanism to drive a mold frame;

FIG. 3 is a schematic view of the cylinder forming machine of the present invention forming a cylinder;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 5 is a schematic view of a partial structure of a mold box;

shown in the figure: the die comprises a die box 1, a die frame 2, a swing driver 4, a die driving device 5, a base 6, a die wheel 7, a tool retracting driving device 8, a connecting rod 9, a steel cylinder 10, a first rotating shaft 11, an eccentric bearing 12, a chuck 13, a connecting lug 14, a limiting groove 15, a second rotating shaft 21, a rack 22 and a gear 23.

Detailed Description

The utility model is further illustrated by the following examples in conjunction with the drawings.

As shown in fig. 1 and 2, a guideless steel cylinder forming machine with a tool retracting mechanism comprises a mold box 1, a mold frame 2, a swing driver 4, a mold driving device 5 and a base 6. The mould box 1 is rotatably connected with the base 6 through a first rotating shaft 11, and the swing driver 4 is hinged with the mould box 1 to drive the mould box 1 to rotate around the first rotating shaft 11. The die frame 2 is rotatably connected with the die box 1 through a second rotating shaft 21, the die wheel 7 is arranged on the die frame 2, and the die driving device 5 is installed on the die box 1 to drive the die frame 2 to rotate around the axis of the second rotating shaft 21. In order to facilitate the processing of short steel cylinders, the guide rail-free steel cylinder forming machine also comprises a tool retracting driving device 8; the first rotating shaft 11 can eccentrically rotate, and the die box 1 is matched with the first rotating shaft 11 in a rotating way; the tool retracting driving device 8 is in transmission connection with the first rotating shaft 11 so as to drive the first rotating shaft 11 to eccentrically rotate and adjust the tool retracting and advancing of the die wheel 7. The swing actuator 4 may be a hydraulic cylinder, an air cylinder, a servo cylinder, a linear motor, or the like.

Specifically, as shown in fig. 3, when the short steel cylinder is closed or bottomed, since the steel cylinder 10 moves left and right along the center line of the chuck 13 during feeding and discharging, in this process, particularly during feeding and discharging of the short steel cylinder, it is desirable that the die wheel 7 is separated from the surface of the steel cylinder in order to prevent the feeding device from interfering with the die wheel 7. Therefore, before the steel cylinder 10 is clamped, the guide-rail-free steel cylinder forming machine can drive the first rotating shaft 11 to eccentrically rotate through the tool retracting driving device 8, so that the die box 1 moves downwards for a certain distance, the height of the second rotating shaft 21 is reduced, the die wheel 7 retracts downwards, and a feeding clamp is provided with a space for feeding and discharging materials. When the steel cylinder 10 needs to be formed, the first rotating shaft 11 is driven to eccentrically rotate by the tool retracting driving device 8, so that the die box 1 moves upwards for a certain distance, the height of the second rotating shaft 21 is increased, and the die wheel 7 feeds the steel cylinder 10. After feeding, the concrete forming process of the short steel cylinder is the same as the working process of the existing guide rail-free steel cylinder forming machine, and the description is not repeated. If the steel cylinder is a long steel cylinder, the feeding clamp does not need to pass above the die 7, the forming machine can be kept in a cutting state all the time, and the steel cylinder can be processed according to the normal processing procedure of the existing guide rail-free steel cylinder forming machine. The guide rail-free steel cylinder forming machine can process long and thin steel cylinders and short steel cylinders within a certain range, has the advantages of larger processing range and better practicability, does not have a slide rail, and has the advantages of simple structure, higher rigidity, convenient maintenance and long service life.

In the utility model, the tool retracting driving device 8 can be a motor, an air cylinder, a hydraulic cylinder, a servo cylinder and the like, and the tool retracting driving device 8 can be arranged on the base 6 or the die box 1. As shown in fig. 2, the retracting driving device 8 is a hydraulic cylinder, one end of the retracting driving device 8 is hinged to the mold box 1, the other end of the retracting driving device 8 is in transmission connection with the first rotating shaft 11 through the connecting rod 9, and the retracting driving device 8 and the connecting rod 9 form a crank-rocker mechanism for driving the first rotating shaft 11 to rotate. The tool retracting driving device 8 is arranged on the die box 1, when the forming machine works, the eccentric mechanism has no action relatively, only bears static force and has no sliding friction, and simultaneously, the tool retracting and advancing are not influenced by the swinging of the die box body. The tool retracting driving device 8 is a hydraulic cylinder, and the cost is low.

Further, when the die wheel 7 advances, the retracting drive device 8 and the connecting rod 9 form a crank-rocker mechanism which drives the first rotating shaft 11 to rotate and is positioned at a dead point position. The dead point position is: the force of the connecting rod 9 on the retracting drive device 8 is along the axial direction of the piston rod of the retracting drive device 8. Therefore, the tool retracting driving device 8 can obtain larger supporting rigidity by using smaller oil cylinder thrust, and can better ensure the forming quality.

Specifically, the eccentric rotation of the first rotating shaft 11 can be realized by two ways: 1. the first rotating shaft 11 is an eccentric shaft with an eccentric structure; 2. the first rotating shaft 11 is a common shaft, and both ends of the first rotating shaft 11 are rotatably connected to the base 6 through eccentric bearings 12, respectively, so as to realize eccentric rotation (see fig. 4). In the second mode, an eccentric shaft does not need to be machined, the manufacturing is more convenient, the cost is lower, and in addition, in the forming process, the track of the die box 1 swinging around the first rotating shaft 11 is also arc-shaped, so that the forming machine can be controlled to work conveniently.

In the present invention, the mold driving device 5 may be a motor, and the motor is in transmission connection with the second rotating shaft 21 to drive the mold frame 2 to rotate around the axis of the second rotating shaft 21. The mold driving device 5 may also be an air cylinder, a hydraulic cylinder, a servo cylinder, etc., and the mold driving device 5 may drive the mold frame 2 to rotate around the axis of the second rotating shaft 21 in a manner that one end is hinged with one end of the mold frame 2. For the convenience of arrangement, the mold driving device 5 is preferably a hydraulic cylinder, and the mold driving device 5 is in transmission connection with the second rotating shaft 21 through a transmission mechanism to drive the mold frame 2 to rotate around the axis of the second rotating shaft 21. It will be appreciated that, at this time, the second rotating shaft 21 is fixedly connected with the mold frame 2. The transmission mechanism can be a crank-link mechanism or a gear rack mechanism.

When the transmission mechanism is a crank link mechanism, the forming effect is affected because the crank link mechanism has dead points and the speed and the torque are nonlinear. For this purpose, the transmission mechanism preferably includes a gear 23 and a rack 22, the gear 23 is fixed on the second rotating shaft 21, and the rack 22 is fixed on the piston rod of the mold driving device 5 and is engaged with the gear 23. The piston rod of the control mold driving device 5 extends or shortens to drive the second rotating shaft 21 to rotate, so as to drive the mold frame 2 to rotate around the axis of the second rotating shaft 21. Compared with a crank connecting rod mechanism, the structure also has the advantages of convenience in installation, small occupied space and the like.

It can be understood that a positioning structure for limiting the movement of the mold box 1 along the axial direction of the first rotating shaft 11 needs to be arranged between the mold box 1 and the first rotating shaft 11, for example, a limiting table matched with the mold box 1 is arranged at both ends of the first rotating shaft 11, and the connecting rod 9 is fixedly connected with one end of the first rotating shaft 11. However, the structure is not compact enough, the stress of the first rotating shaft 11 is not reasonable enough, and the problems of easy deformation, eccentric wear and the like exist. For this purpose, as shown in fig. 4 and 5, preferably, one end of the connecting rod 9 is clamped in a groove on the first rotating shaft 11 to be fixedly connected with the first rotating shaft 11, the mold box 1 is rotatably matched with the first rotating shaft 11 through two connecting lugs 14 arranged at intervals, a limiting groove 15 for limiting the mold box 1 to move along the axial direction of the first rotating shaft 11 is formed between the two connecting lugs 14, and the connecting rod 9 is matched with the limiting groove 15 to limit the mold box 1 to move along the axial direction of the first rotating shaft 11.

Claims

1. A steel cylinder forming machine without a guide rail and provided with a tool retracting mechanism comprises a die box (1), a die frame (2), a swing driver (4), a die driving device (5) and a base (6); the die box (1) is rotatably connected with the base (6) through a first rotating shaft (11), the swing driver (4) is hinged with the die box (1), the die frame (2) is rotatably connected with the die box (1) through a second rotating shaft (21), a die wheel (7) is arranged on the die frame (2), and the die driving device (5) is installed on the die box (1) to drive the die frame (2) to rotate around the axis of the second rotating shaft (21); the method is characterized in that: the device also comprises a tool retracting driving device (8); the first rotating shaft (11) can eccentrically rotate, and the die box (1) is in running fit with the first rotating shaft (11);

the tool retracting driving device (8) is in transmission connection with the first rotating shaft (11) so as to drive the first rotating shaft (11) to eccentrically rotate and adjust tool retracting of the die wheel (7).

2. The machine for forming a steel cylinder without guide rail having a tool retracting mechanism according to claim 1, wherein: the tool retracting driving device (8) is a hydraulic cylinder, one end of the tool retracting driving device (8) is hinged to the die box (1), the other end of the tool retracting driving device is in transmission connection with the first rotating shaft (11) through a connecting rod (9), and the tool retracting driving device (8) and the connecting rod (9) form a crank rocker mechanism for driving the first rotating shaft (11) to rotate.

3. The machine of claim 2 for forming a steel cylinder without guide rail and having a tool retracting mechanism, wherein: when the die wheel (7) is in feed, the crank-rocker mechanism is in a dead-center position.

4. The machine of claim 1 for forming a steel cylinder without guide rail and having a tool retracting mechanism, wherein: the first rotating shaft (11) is an eccentric shaft.

5. The machine of claim 1 for forming a steel cylinder without guide rail and having a tool retracting mechanism, wherein: the two ends of the first rotating shaft (11) are respectively connected with the base (6) in a rotating mode through eccentric bearings (12) to achieve eccentric rotation.

6. The machine of claim 1 for forming a steel cylinder without guide rail and having a tool retracting mechanism, wherein: the die driving device (5) is a hydraulic cylinder, and the die driving device (5) is in transmission connection with the second rotating shaft (21) through a transmission mechanism so as to drive the die frame (2) to rotate around the axis of the second rotating shaft (21).

7. The machine of claim 6 for forming a steel cylinder without guide rail and with a tool retracting mechanism, wherein: the transmission mechanism comprises a gear (23) and a rack (22), the gear (23) is fixed on the second rotating shaft (21), and the rack (22) is fixed on a piston rod of the die driving device (5) and meshed with the gear (23).

8. The machine of claim 1 for forming a steel cylinder without guide rail and having a tool retracting mechanism, wherein: the swing driver (4) is a hydraulic cylinder.

9. The machine of claim 2 for forming a steel cylinder without guide rail and having a tool retracting mechanism, wherein: in the recess of one end joint on first pivot (11) of connecting rod (9), die box (1) forms spacing groove (15) along first pivot (11) axial displacement between two engaging lugs (14) through engaging lug (14) and first pivot (11) normal running fit that two intervals set up, connecting rod (9) and spacing groove (15) cooperation.